Fiber-dressing- machine



F. GRAF, SR.

FIBER DRESSING MACHINE.

APPLICATION FILED DEC.29| 1919- 3 SHEETS-SHEET 1- WITNESS: & [NVENTOR.

' ATTORNEKS Rea/ms". FIBER DRESSING MACHINE.

APPLICATION FILED DEC.29, 1919.

Patented Sept. 7 1920,

3 SHEETS SHEET 24 WITESS:

F. GRAF, SR.

FIBER DRESSING MACHINE.

APPLICATION FILED DEC-29. I919.

Patnted Sept. 7, 1920.

3 SHEETS-SHEET 3- v INVENTOR. w/m

' A TTORNEYZS WITNESS.-

unirso STATES PATENT OFFICE. f

FRITZ GRAF,'SR., 0F COLLINGDALE, PENNSYLVANIA.

FIBER-DRESSING- MACHINE.

' 7 Application filed December 29, 1919. S e rial No. 348,237.

To all whom it may concern. Be 1t known that I, FRITZ GRAY, Sn, a c tizen of Switzerland, residlng at Colhngdale,

in the county of Delaware and State of.

Pennsylvania, have invented certain new and useful Improvements 1n Fiber-Dressing Machines, of which the following is aspeci fication. r r

My invention more particularly relates to a machine which is especially applicable to the treatment of silk waste, thoughit will, of course, be understood that my invention is not limited to this 'particular' use. 1 1

The spun silk industry utilizes knownas waste silk, which comes froin thefollowing sources:

1. WVaste silk O tained 1n e l n Ci),

GOODS.

2. Cocoons which,because'of wormholes" or other causes, are not su table for ree'hng. 3. The waste produced in w1nd1ng,throw-.

ing and weaving silk.

The waste silk so obtainedis first'passed through what is known as a lapping a,. 6 chine, which comprises a drum prov ded with a card sheet, whicharranges fibers in a more or lessfp'arallel relation and forms a lap or mat which 1s more 'orless uniform in thickness. The lap soformed is passed through a filling machine, which comprises a cylinder placed back of two. feeding rolls through which] the lap is passed and provided with a number 'of banks of hooked teeth which pullout the threads and form loops around the hooks. Theithreads between the banks of teeth are then cut, the free ends of the threads wound on st1cks,and I the loops removed from the, hooks, leaving the looped ends of thesilk extending from.

the sticks. These sticks, which are now called filled sticks, are placed ing'aidress-x Ting machine with the loops extendingout- 'wardly, the object. of the dressing .m'achine being to combthe silkfibers andarrange them in parallelrelation" and sort thefibers according to length. It is-the dressing ma} chine with whichmy present invention is concerned. 'YY o M'yinvention will best be understood by reference to the accompanyingdrawings, in

which Figure 1' is. a side elevation of a silk dressing machine embodying my invention; Fig. 2 is a side elevation of theparticula'r portion of the machine embodying my inve tion; Fig. 3 is a plan view of or hat is [plunger and associated parts by which the stoppage of the machine is'brought about; Flg. s across section through the casing shown in F 1g. 3; Fig. 5 is an end view from the left of Fig. 2; Fig.6 is a side elevation similar to Fig. 2 showing a modified form of my invention;- F 1g. 7 1s a cross section;

. Specificationbf Letters 13mm; Patented Sept. *7 1920.

through the casing of Fig. 6; Fig. 8 is a side View of a member movable by a broken stick which brings about the operation of the ,device shown in Fig. 6, and Fig. 9 is a detailviewof the contacts shown in Fig. 8.

1 Referring, now, to the drawings, in which "like reference characters indicate like parts. 1O isthe frame of the machine supported on pedestals 11. A circular frame 12 is mount- 'ed ona shaft 13 which has its bearings, at '13, in the frame of the machine. This frame 5 preferably comprises twospaced," annular members, only one of which is shown in the are securedja-plurality of boards 14, technically known as shders, which may consist'ofwooden p eces of the form shown in "end elevation in Fig. 1, and extending trans- Each versely across the circular. v frame. slider is provided with a semi-circular: groove 15, which forms, withlthe comple' mentary groove of an adjacent. slider, a circular opening in which ,a filledl stick 16,

prepared in'the manner describedvabove, is received, asect on of"shders and filled sticks being clamped in position'by mechanisjm well known the art and which, there fore, neednot here be described, The-looped ends of the silk threads which project from the. dressing'i'frame are first combedfrom none sideby a coarse dressing drum 1 17" .mounted; on a shaft l8 having its bearings in;the; frame ofthe machineand provided on its periphery with a card; sheet 19; The filoers are combedfrom the other side by, a

fine dressing drum'QO mounted-on a shaft drawmgsfiQn the Periphery of the'dr'urn 20,'alsohavingj its hearings in the frame of ofthesilk threads wound thereon projecting fromthe circular frame, as indicated in Fig.

" .These sticks are automaticallyunwound dressing roll.

from the silk and removed from the ma chine before the silk is brought to the first These sticks are removed, under normal conditions and preparatory to the second combing, by angular plates 21., which are here shown as three in number, the middle plate (see Fig. 5) preferably being shorter than the two end plates. The plates are arranged as best shown in Fig. 1, the upper edges of the plates being placed "adjacent the circular frame so that their edges come behind the sticks as the latter are lowered due to the rotation of the circu in frame, and as the sticks ride downwardly over the inclined edges of the plates, the sticks are unwound, under normal conditions, from the silk threads and are then removed from the machine. It frequently happens, however, when the silk has been improperly wound upon the sticks, that loops are formed which prevent the silk from unwinding from the sticks. Under these circumstances the stick is broken, as indicated in Fig. 5, and with a machine such as hithertomad'e, the broken stick falls between the large circular frame and the coarse dressing drum and results in injury to the card sheet of the latter. If the coarse dressing drum is further used without replacing the injured card sheet, it operates less efficiently and produces an inferior silk, and when eventually renewed, the machine must bestopped and there is a corresponding decrease in production. The card sheets are expensive and the frequent renewals of the same, required in machines hitherto used, have added materially to the cost of silk manufacture.

In accordance with my present invention, meansare provided for automatically stopping the machine when a stick is broken, thereby giving the operator knowledgeof the presence in the machine of a broken 'st idk and enabling him to remove the same from the machine before it has had a chance to inj'urethe card sheet. In the form of my invention. here shown, [a movable member, which preferably has the form of a head of arake 'andwhich I haveindica'ted in general by the reference character 22 (see Fig. 5'') ,is

"so arranged as to be moved by a broken stick'and to bring about the stoppage of the machine. The member 22 comprises a rota "table shaft 23 having its bearingsin the "frame of the machine. Teeth 23 project "from'the shaft 23 into the path taken by a brdken stick, as shown in Figs. 2 and 5. Under normal conditions, when the sticks 'are properly unwound from the silk fibers, th'eydo not engage the te'eth23 but when a stick "is broken, "the teeth are engaged, the force exerted by the broken stick causing "the shaft 23 to be rotated. i

' In the form of my invention here illustrated, the machine is stopped by'shifting engaging a member secured thereon.

the driving belt to an idle pulley, and as this operation requires a considerable amount of mechanical work, I preferably employ a member, moved by a spring or the like, which is sufiiciently powerful to perform the belt shifting or other operation, and 'which is tripped and released by the memin a position to the right, as indicated in Figs. 2 and 3, by a toggle '26, one arm 27 of which is mounted on a stationary pivot 28, while the other arm 29 is pivoted at '50 in a collar or lug 31 secured to the rod 24, the Pivotal connection of the two arms form ing a floating pivot. The toggle and associated parts are preferably housed in a casing 33 having a removable cover 34 (Fig. 4); The casing provides, at 35,a convenient guide and bearing for the plunger '24, and at 36, in the form of my invention illustrated in to 4, for an adjustable bar 37, which is pivoted at 38 to the end of an arm '39 secured on the shaft '23 of the rake The rod 37 "is provided with a collar 40 which engages one arm 41 of a bell-crank 41, the other arm 41* of'which engages the pivotjoint 32 of the two arms of the toggle.

llhen anyrojf the teeth 23 are moved down ward'ly by a broken st1ck,"the shaft "23 is rotated clockwise, as viewed in Fig.2, the arm 39 and the bar 37 connected thereto are moved to the left, the bell-crank 41 is rotated clockwise, the arm 41 engaging and lowering the pivotal joint of the toggle 26. As soon as'the pivotal point passes the centerl ine of the toggle, the toggle at once collapses,'peianitting'the spring 25 to move the bar 24'to the left,the 'shock due to the movement of the bar preferably being -taken up by a coil spring 42 surrounding the bar and A link 43 pivoted at '44 to the end of the bar 24, the opposite end of the link being p'ivoted at 4'5to the end of an arm 46 secured on a shaft 47. A second arm 48 is is attached afmember 49, to which is con- 'nected a shift fork '50, which, in the form of myi inven'tion here shown, shifts the driving belt '51 forthe machine to an idle pulley. X'Vhen the parts are manually restored to the position shown in Fig. 2, thecom'b 22 and associated parts are returned to their normal position by a coil spring 52' (see Fig. 2) acting on an 7 arm 7 55 secured to the shaft I I have not deemedit necessary to show completelylthe driving connections, as the same constitute no part of my invention, it

being understood that the circular frame and the coarse and fine dressing rolls are rotated in the directions indicated by the arrows. The large circular frame is driven from theshatt 20 by means ofthe belt 51, which engages a pulley 53. The motion may be transmitted'from the pulley "53 to the circular frame by means of suitable worm wheels and internal gears, the details of which are not here shown. f p

In Figs. 6, 7, 8 and 9 I have shown a modified form of my invention, in which the collapse of the toggle 26 is brought about;

by a magnet 54-, the circuit of which is closed on a movement of the shaft 23. The arm 55 (Fig. 8) constitutes a movablecontact, which coiiperates with a stationary contact 56. Therespective contacts are connected through conductors. 57 and 58 to the magnet 54, a suitable sourceoi' electric energy, such as the battery 59, belng included in the c1r cuit. When the magnet 54: isenergized it attracts an armature 6O,wh1ch forms one arm of a bell-crank pivoted at 60 the other arm 61 of which engages beneath the pivotal joint of the toggle 26, thereby normally keeping the toggle straight and restraining the member 24:. When the armature 60. is attracted theend of the arm 61 is disengaged fromthe toggle therebypermitting the toggle to collapse to the dotted line position showninFig. 6, and permits the spring 25 to pull the arm 24: to the left :and bring about the stoppage of the machine, in the;

same manner as described ii connection with Figs. 2 to 4;, it being understood that the pivotal joint/of the toggle is in this, case,

beneath the center line, the toggle thereby collapsing as soon as the arm 61 is-Withdrawn from beneath the toggle. The ar 1 ture is returned to its normal position b a spring 62. i c c It Will, of'course, readilybe understood that variousimeans may; be provided for. stopping the machine in response to the movement of the member whichis actuated by a broken stick. 7 j

The present improvement of stopping means could'be applied with the same effect to other types'ot'f carding or dressing ma chines for treating fibers, for instance, machines having fiat cardsor other arrange ments of combs; and likewise the fibers could be presented to the cards or combs by different forms of traveling means other than a rotary frame. x

What I claim and desire to secure by Letters Patent of the UnitedStates is:

1. In a machine of the characterdescribei i means for conveyinga plurality "of sticks for carrying textile fibers, and means Whereby displacement of a stick from carrying" position operates to stop the machine.

2. In a machineof the character described,

means for conveying a plurality of sticks for. carrying textile fibers, and means where .bybreakage of a stick from carrying POSl i tion operates to stop the machine.

p 3. In a machine of the character described,

position for stopping the machine.

5. In a machine of the character described, means for conveyinga plurality of sticks for carrying textile fibers, means for unwindingthe sticks from the fibers to release them from theconveying means, and means adapted to beactuated by a broken stick to arrest the operation of the machine.

6. In machine of the character described, means for conveying a plurality of sticks forcarrying textile fibers, means-interposed in the'path of thesticks to cause them to be unwound fromthe fibers to release them from theconveying means,-and

ineansoper able by-a broken stick for arresting the operation ofthe machine.

of sticks for carrying textile fibers, means interposedin the path of the sticks to cause 3' 7.111 a machine of the character clescribed, means for conveying a plurality them to be*unwound from the fiberstorelease them from the conveying means, and

means arranged out of the normal path of gaged by abroken stick for arresting. the operation of the machine.

; 8.. Inja machine of the character described, meansfor conveying a plurality of sticks for carryingtextile fibers, means for operating on; the fibers, stopping means for arresting theoperatlon of the machine, de-

tentmean's'cfor rendering the stopping means by i a broken stick to release the. 'detent means to cause the actuation of the stopping means. 7, I,

9. In a fiber dressing machine, in'combination with 'meansadapted to carry sticks filled with fibers with the sticks projecting fromsaid means and the coeperating dress- .the released sticks and adapted to be eninactive, and means adapted to be actuated ing means andthe means for unwinding" the-sticksgfrom the fibers before reaching the dressing means, means responsive to the force. exerted by a broken stick for stopping the machine. I I v 110. In a fiber dressing machine, in combinationfwith means adapted to carry sticks v filled withfibers'iwith the sticks'project- I ing from said means and the coiiperating dresslng means and the means for unwindchine.

vll. In a fiber dressing machine, in combination with the rota-table frame adapted to carry sticks filled with fibers with :the sticks projecting from the frame and the cooperating dressing drum and the means for unwinding the sticks from :the fibers before reaching the dressing drum, means whereby the displacement of a stick due to breakage stops the machine.

In :a'fiber dressing :machine, in combination with the rotatable frame adapted to carry sticks filled with fibers with the sticks projecting from the frame and the cooperating idressing drum and the means for unwinding :the sticks from the fibers before reaching the dressing drum, means disposed adjacent to the rotatable frame in the pathiof movement taken by a broken stick and responsive to the force exerted thereby for stopping the :machine.

13. In a fiber dressing machine, in =c0m bination with the rotatable frame adapted to carry sticks iilled with fibers with the sticks projecting from the frame and the cooperating dressing drum and the means for unwinding the sticks from the fibers before reaching the dressing drum, a movable memher disposed in the path of movement taken by a broken stick and responsive to the pressure exerted thereby for stopping the machine.

15. In a fiber dressing machine, in combination with the rotatable frame adapted to carry sticks filled with fibers with the sticks projecting from the frame and the cooperating dressing drum and the means for unwinding the sticks from the fibers before reaching the dressing drum, means responsive to the force exerted by a broken stick forshifting the driving belt to an idle pulley and thereby stopping the machine.

16. In a fiber dressing machine, in combination with the rotatable frame adapted to ca ry sticks filled with fibers with the sticks projecting from the frame and the cooperating dressing drum and the means for unwinding the sticks from the fibers before reaching the dressing drum, mechanically operated means for stopping the machine, and means responsive to the force exerted by a broken stick for tripping said mechanically operated means.

' 17. In a fiber dressing machine, in combination with the rotatable frame adapted to carry sticks filled with fibers with the sticks projecting from the frame and the cooperating dressing drum and the means for unwinding the sticks from the fibers be fore reaching the dressing drum, a movable member for stopping the machine, means for operating said movable member, a lock for normally restraining the movement of said member, and means responsive to the force exerted by a broken stick for releasing said FRITZ GRAF, SR. 

